(S)-2-Aminobut-3-en-1-ol hydrochloride is primarily utilized in the field of organic synthesis, where it serves as a key intermediate in the production of various pharmaceutical compounds. Its chiral structure makes it particularly valuable in the synthesis of enantiomerically pure drugs, which are essential for achieving specific biological activities with reduced side effects. This compound is often employed in the development of antiviral and anticancer agents, where its unique chemical properties enable the creation of targeted therapies. Additionally, it is used in the preparation of bioactive molecules that are investigated for their potential in treating neurological disorders. Its role in facilitating the construction of complex molecular architectures underscores its importance in medicinal chemistry and drug discovery.